EP1251253B1 - Valve system for shutting off suction passages of an intake system - Google Patents

Valve system for shutting off suction passages of an intake system Download PDF

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Publication number
EP1251253B1
EP1251253B1 EP02007375A EP02007375A EP1251253B1 EP 1251253 B1 EP1251253 B1 EP 1251253B1 EP 02007375 A EP02007375 A EP 02007375A EP 02007375 A EP02007375 A EP 02007375A EP 1251253 B1 EP1251253 B1 EP 1251253B1
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EP
European Patent Office
Prior art keywords
members
shut
passages
frame
switching
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP02007375A
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German (de)
French (fr)
Other versions
EP1251253A2 (en
EP1251253A3 (en
Inventor
Ingo Koch
Herbert Pietrowski
Günter STEINER
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Mann and Hummel GmbH
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Mann and Hummel GmbH
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Publication date
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Publication of EP1251253A3 publication Critical patent/EP1251253A3/en
Application granted granted Critical
Publication of EP1251253B1 publication Critical patent/EP1251253B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
    • F02M35/10078—Connections of intake systems to the engine
    • F02M35/10085—Connections of intake systems to the engine having a connecting piece, e.g. a flange, between the engine and the air intake being foreseen with a throttle valve, fuel injector, mixture ducts or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B27/00—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues
    • F02B27/02—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B27/00—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues
    • F02B27/02—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means
    • F02B27/0205—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means characterised by the charging effect
    • F02B27/0215—Oscillating pipe charging, i.e. variable intake pipe length charging
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B27/00—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues
    • F02B27/02—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means
    • F02B27/0226—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means characterised by the means generating the charging effect
    • F02B27/0247—Plenum chambers; Resonance chambers or resonance pipes
    • F02B27/0263—Plenum chambers; Resonance chambers or resonance pipes the plenum chamber and at least one of the intake ducts having a common wall, and the intake ducts wrap partially around the plenum chamber, i.e. snail-type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B27/00—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues
    • F02B27/02—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means
    • F02B27/0226—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means characterised by the means generating the charging effect
    • F02B27/0268—Valves
    • F02B27/0273—Flap valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
    • F02M35/10026—Plenum chambers
    • F02M35/10045—Multiple plenum chambers; Plenum chambers having inner separation walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
    • F02M35/10026—Plenum chambers
    • F02M35/10052—Plenum chambers special shapes or arrangements of plenum chambers; Constructional details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
    • F02M35/10072—Intake runners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
    • F02M35/10111—Substantially V-, C- or U-shaped ducts in direction of the flow path
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
    • F02M35/10255—Arrangements of valves; Multi-way valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/104—Intake manifolds
    • F02M35/108—Intake manifolds with primary and secondary intake passages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/104—Intake manifolds
    • F02M35/116—Intake manifolds for engines with cylinders in V-arrangement or arranged oppositely relative to the main shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B27/00—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues
    • F02B27/02—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means
    • F02B27/0226—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means characterised by the means generating the charging effect
    • F02B27/0268—Valves
    • F02B27/0284—Rotary slide valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/109—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps having two or more flaps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/104—Intake manifolds
    • F02M35/112—Intake manifolds for engines with cylinders all in one line
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the invention relates to a switching association for closing suction channels of a suction device of an internal combustion engine.
  • Switching assemblies of the type mentioned are known from the prior art.
  • a channel shutdown for the intake ports of an intake system known, which consists of switching associations, which each combine two flaps in a common damper frame.
  • switching associations which each combine two flaps in a common damper frame.
  • These individual switching assemblies are combined to form an adjusting unit, which is driven by a common actuating means.
  • the switching flaps according to this document are all on one axis.
  • assembly injection molding is used, in which the flaps are injected directly into the frame, creating a non-removable functional assembly.
  • This manufacturing process is for example in the EP 482 272 B1 described in more detail.
  • the flap frame is injected with a passage for the air, which is to be closed by the flap, is recessed by a corresponding core.
  • this very core is pulled apart a bit, creating a cavity into which the flap can be injected directly.
  • the flap edge is not formed by a molding tool, but by the frame itself, which tolerances can be completely compensated.
  • the shrinkage of the injected flap then causes the free movement of the same in the flap frame. Therefore, the materials of the frame and the flap must not stick to each other.
  • More than two flaps can not be injection molded in one piece because the shrinkage of the flaps would result in tensions and increased friction of the flaps in the various through holes. Thus the function of such a switching association would be seriously endangered.
  • a suction module for an internal combustion engine which has closable additional intake ducts by means of flaps, these flaps are connected via coupling means with each other and with actuating means in the form of a servomotor.
  • an elastic region is provided in the coupling means, which allows in particular the complete closing and opening of the intake ducts.
  • the flaps are inserted as individual flaps in the intake ducts.
  • the object of the invention is therefore to provide a cost-effectively manufacturable and easy-mount switching association, which optimally meets the requirements for the mobility of the closure members and the same sealing against the through opening to be closed. This object is solved by the features of claim 1.
  • the switching association according to the invention comprises in a known manner a frame in which the passages are provided, which communicate with the suction channels of the suction device. So they are traversed by the intake air. A closure of these passages through corresponding closure members thus leads to a closure of the suction channels.
  • the passages may be arranged side by side in the frame in various ways. An arrangement in a row is conceivable, but an offset arrangement can also take place. This is particularly useful if only a portion of the passages should be designed to be closed by closure organs.
  • the closure members are made using partial surfaces of the frame as mold walls and additionally other molded parts in Urformtechnik.
  • the assembly injection molding process in which the closure members can be made of plastic The closure organs are doing in a Injected cavity, which results from the mold parts and just those partial surfaces of the frame with which the closure members are to be engaged.
  • the seating surfaces of the closure member offer, which must be in sealing engagement with the frame parts forming the passages, at least when the closure member is closed.
  • the bearing shafts of the closure members which are necessary for a rotation of the same, made in one piece with the closure members, thereby forming bearing surfaces in the frame for the bearing shafts.
  • the bearing shaft does not need to be stored directly in the frame. Additional slip rings or the like may also be used.
  • the switching assembly according to the invention is characterized in that each of the bearing shafts made in one piece with the closure members has its own axis of rotation.
  • the individual bearing shafts can thus be controlled by a common actuating means to allow their rotation.
  • the main advantage of the embodiment according to the invention is that all closure members can be injected into a single frame, since their tolerances due to the shrinkage do not depend on each other by a common shaft. This results in a very inexpensive to manufacture component, with high tolerance requirements can be met. As a result, at the same time the function of the switching association according to the invention is ensured.
  • the described design also has the advantage that an addition of the tolerances due to an angular offset of the flaps on a common axis of rotation is completely avoided.
  • the closure organs are better maintained, as they can be set individually for each flap.
  • An addition of the tolerances is excluded.
  • closure members are switching flaps. These are preferably designed with a central bearing shaft as a rotation axis and butterfly-like attached flap wings. At a switching flap of the type described, the force acting on the flap forces due to the flow of air in the aspiration match, so that they can be operated with low actuating forces.
  • the described alignment has the advantage that the individual flaps can be controlled particularly easily by a corresponding adjusting device, for example an adjusting rod.
  • a corresponding adjusting device for example an adjusting rod.
  • the distance between the adjacent closure members can be minimized thereby, whereby the switching association can be accommodated in a confined space.
  • FIGS. 1 to 4 show switching assemblies of the known type for a better understanding of the embodiments of the invention in the Figures 5 and 6 ,
  • FIG. 1 a switching association 10 is shown. This could for example be installed as an intermediate flange via mounting holes 11 between the cylinder head of an internal combustion engine (not shown) and the cylinder head flange of a suction pipe (also not shown).
  • the switching association has passages 12, which communicate with the suction channels, not shown, of the suction device. There are switched and non-switched passages.
  • rotary valve 13 In the switched passages rotary valve 13 are arranged. These are in a frame 14 a, which together with them forms the switch assembly 10, injected. In the broken part can be seen that the rotary valves are shown in the open position. To recognize further is a bearing shaft 15 which penetrates the frame 14a and is provided with a crank for the mechanical control of the associated rotary valve 13.
  • FIG. 2 is a variant of the switching association according to FIG. 1 shown.
  • This variant differs in that the rotary valves 13 are each injected into separate frames 14b. This results in individual units that can be used in a support member 17.
  • the carrier component according to FIG. 2 thus fulfills the same purpose when installed in a suction tube, not shown, as the frame 14a according to FIG. 1 , The rotary valves are shown in this case in the closed state.
  • FIG. 3 the contour of the frame 14b can be seen more accurately. These surround the rotary valve 13 annularly, whereby the association between frame 14b and rotary valve 13 can be selectively sealed against each other according to the stated advantages of the assembly injection molding. Since the rotary valve in the closed position is shown, the passages which are arranged below the rotary valve can not be seen.
  • the switching association according to FIG. 4 corresponds in structure to the according FIG. 2 , but instead of the rotary valve 13 according to FIG. 2 a switching flap 18 is used. To recognize is in section the bearing shaft 15 of the switching flap and the outgoing from this flap wings 19. As related to FIG. 2 set forth, the switching flap 18 is spray-molded into the frame 14b. The frame is inserted into the support member 17. In this case, for example, a press fit can be realized, which ensures a reliable mounting of the frame 14b in the support member 17.
  • FIG. 2 results in the design of the flap. This is primarily intended to generate vortices in the flow of intake air. Therefore, it does not completely close the cross section of the suction channel in the closed state.
  • FIG. 5 is a switching association with staggered passages 12 shown.
  • a number of the passages are provided with switching flaps 18. These are injected directly into the frame 14a.
  • an actuator consisting of a push rod 20 and a drive 21, to recognize.
  • the push rod engages via ball joints 22 on the cranks 16 of the switching flaps 18 via a crank 16 a, the force of the drive is transmitted to the push rod.
  • FIG. 6 the installation of a switching association is shown in a suction tube.
  • the switch assembly is connected to cylinder head side outlets 23, connect the suction channels 24 with the cylinder head 25 of an internal combustion engine shown schematically.
  • the suction pipe consists of a collecting space 26, from which the suction channels 24 branch off alternately and rotate in a helical manner. Therefore, the intake manifold is suitable for an internal combustion engine with V-arrangement of the cylinder.
  • the actuating device can still be seen corresponding to the components FIG. 5 , the cranks 16, the ball joints 22, the push rod 20 and the drive 21 consists.
  • the drive can be realized for example by an electric motor.
  • Another possibility is the attachment of a vacuum box, which can be switched for example by the Saugrohrunter horr.
  • an inlet 27 for the combustion air can be seen in the plenum. Through this passes through the cleaned by the air filter of the intake Intake air to be distributed over the collecting space 26.
  • the switch assembly is provided with seals 28 to ensure a seal against the intake manifold 29 and the cylinder head 25.
  • the switching assemblies 10 are pre-assembled.
  • the final assembly on the suction pipe can thus be done by a simple handling step, whereby the particularly sensitive costs in the final assembly can be kept small.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Physics & Mathematics (AREA)
  • Characterised By The Charging Evacuation (AREA)
  • Multiple-Way Valves (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Massaging Devices (AREA)
  • External Artificial Organs (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Abstract

The device (10) has a frame (14b) with intake air passages (12) and closure elements (16) for the passages. The elements are formed integrally with bearing shafts (15), and each has its own rotary axis. Several frames are located next to each other in a carrier part (17), and all intake air passages correspond with suction channels (24a,b). The closure elements are valve flaps or rotary slides. The switching device is fitted into a suction tube and closes the suction channel with the help of an actuator device.

Description

Stand der TechnikState of the art

Die Erfindung betrifft einen Schaltverband zum Verschluss von Saugkanälen einer Ansaugvorrichtung einer Brennkraftmaschine.The invention relates to a switching association for closing suction channels of a suction device of an internal combustion engine.

Schaltverbände der eingangs genannten Art sind aus den Stand der Technik bekannt. Zum Beispiel ist gemäß DE 197 35 133 A1 eine Kanalabschaltung für die Saugkanäle eines Ansaugsystems bekannt, die aus Schaltverbänden besteht, welche je zwei Klappen in einem gemeinsamen Klappenrahmen miteinander vereinen. Diese einzelnen Schaltverbände sind zu einer Verstelleinheit zusammengeschlossen, die durch ein gemeinsames Betätigungsmittel angetrieben wird.Switching assemblies of the type mentioned are known from the prior art. For example, according to DE 197 35 133 A1 a channel shutdown for the intake ports of an intake system known, which consists of switching associations, which each combine two flaps in a common damper frame. These individual switching assemblies are combined to form an adjusting unit, which is driven by a common actuating means.

Die Schaltklappen gemäß diesem Dokument liegen alle auf einer Achse. Als Fertigungsverfahren kommt das sogenannte Montagespritzgießen zum Einsatz, bei dem die Klappen direkt in den Rahmen eingespritzt werden, wodurch eine nicht demontierbares Funktionsbaugruppe entsteht. Dieses Fertigungsverfahren ist zum Beispiel in der EP 482 272 B1 genauer beschrieben. Im ersten Schritt wird der Klappenrahmen gespritzt wobei ein Durchgang für die Luft, der durch die Klappe verschlossen werden soll, durch einen entsprechenden Kern ausgespart wird. Im zweiten Schritt wird eben dieser Kern ein Stück auseinandergezogen, wodurch eine Kavität entsteht, in die die Klappe direkt eingespritzt werden kann. Dabei wird der Klappenrand nicht durch ein Formwerkzeug, sondern durch den Rahmen selbst gebildet, wodurch Toleranzen vollständig ausgeglichen werden können. Die Schwindung der eingespritzten Klappe bewirkt anschließend die freie Beweglichkeit derselben im Klappenrahmen. Daher dürfen die Werkstoffe des Rahmens und der Klappe nicht aneinander haften.The switching flaps according to this document are all on one axis. As a manufacturing process, the so-called assembly injection molding is used, in which the flaps are injected directly into the frame, creating a non-removable functional assembly. This manufacturing process is for example in the EP 482 272 B1 described in more detail. In the first step, the flap frame is injected with a passage for the air, which is to be closed by the flap, is recessed by a corresponding core. In the second step, this very core is pulled apart a bit, creating a cavity into which the flap can be injected directly. The flap edge is not formed by a molding tool, but by the frame itself, which tolerances can be completely compensated. The shrinkage of the injected flap then causes the free movement of the same in the flap frame. Therefore, the materials of the frame and the flap must not stick to each other.

Die Schwindung der Klappe hat jedoch die Konsequenz, dass sich ein Längenversatz von mehreren Klappen, die mit einer gemeinsamen Welle montagespritzgegossen werden, addiert. Daher ist bei einem Aufbau gemäß DE 197 35 133 eine Aufteilung der gesamten Schaltvorrichtung in mehrere Schaltverbände zu je zwei Klappen notwendig.However, the shrinkage of the flap has the consequence that a length offset of several flaps, which are injection molded with a common shaft added. Therefore, in a structure according to DE 197 35 133 a division of the entire switching device in several switching associations to two flaps necessary.

Mehr als zwei Klappen können nicht in einem Stück montagespritzgegossen werden, da die Schwindung der Klappen zu Spannungen und einer erhöhten Reibung der Klappen in den verschiedenen Durchgangsöffnungen führen würde. Damit wäre die Funktion eines solchen Schaltverbandes ernstlich gefährdet.More than two flaps can not be injection molded in one piece because the shrinkage of the flaps would result in tensions and increased friction of the flaps in the various through holes. Thus the function of such a switching association would be seriously endangered.

Aus der DE 198 00 207 ist ein Saugmodul für eine Brennkraftmaschine bekannt, das mittels Klappen verschließbare zusätzliche Ansaugkanäle aufweist, diese Klappen sind über Kupplungsmittel miteinander und mit Betätigungsmitteln in Form eines Stellmotors verbunden. Zum Toleranzausgleich zwischen Klappen und Betätigungsmitteln ist ein elastischer Bereich in den Kupplungsmitteln vorgesehen, der vor allem das vollständige Schließen und Öffnen der Ansaugkanäle ermöglicht. Die Klappen sind als Einzelklappen in die Ansaugkanäle eingesteckt.From the DE 198 00 207 a suction module for an internal combustion engine is known, which has closable additional intake ducts by means of flaps, these flaps are connected via coupling means with each other and with actuating means in the form of a servomotor. To compensate for tolerances between flaps and actuating means an elastic region is provided in the coupling means, which allows in particular the complete closing and opening of the intake ducts. The flaps are inserted as individual flaps in the intake ducts.

Aufgabe der Erfindung ist es daher, einen kostengünstig herstellbaren und einfach montierbaren Schaltverband zu schaffen, der gleichzeitig die Anforderungen an die Beweglichkeit der Verschlussorgane und die Abdichtung derselben gegenüber der zu verschließenden Durchgangsöffnung optimal erfüllt. Diese Aufgabe wird durch die Merkmale des Patentanspruches 1 gelöst.The object of the invention is therefore to provide a cost-effectively manufacturable and easy-mount switching association, which optimally meets the requirements for the mobility of the closure members and the same sealing against the through opening to be closed. This object is solved by the features of claim 1.

Vorteile der ErfindungAdvantages of the invention

Der erfindungsgemäße Schaltverband weist in bekannter Weise einen Rahmen auf, in dem die Durchgänge vorgesehen sind, welche mit den Saugkanälen der Ansaugvorrichtung kommunizieren. Damit werden diese durch die Ansaugluft durchflossen. Ein Verschluss dieser Durchgänge durch entsprechende Verschlussorgane führt somit zu einem Verschluss der Saugkanäle.The switching association according to the invention comprises in a known manner a frame in which the passages are provided, which communicate with the suction channels of the suction device. So they are traversed by the intake air. A closure of these passages through corresponding closure members thus leads to a closure of the suction channels.

Die Durchgänge können auf verschiedene Weise nebeneinander im Rahmen angeordnet sein. Denkbar ist eine Anordnung in einer Reihe, jedoch kann auch eine versetzte Anordnung erfolgen. Dies ist insbesondere dann sinnvoll, wenn nur ein Teil der Durchgänge durch Verschlussorgane verschließbar ausgeführt sein sollen.The passages may be arranged side by side in the frame in various ways. An arrangement in a row is conceivable, but an offset arrangement can also take place. This is particularly useful if only a portion of the passages should be designed to be closed by closure organs.

Die Verschlussorgane sind unter Verwendung von Teilflächen des Rahmens als Formwandungen und zusätzlich weiteren Formteilen in Urformtechnik hergestellt. Hiermit ist insbesondere das Montagespritzgießverfahren gemeint, bei dem die Verschlussorgane aus Kunststoff hergestellt werden können. Die Verschlussorgane werden dabei in eine Kavität hineingespritzt, welche sich durch die Formteile und eben jene Teilflächen des Rahmens ergibt, mit denen die Verschlussorgane im Eingriff stehen sollen. Hierbei bieten sich insbesondere die Sitzflächen des Verschlussorgans an, welche zumindest bei geschlossenem Verschlussorgan mit den die Durchgänge bildenden Rahmenteilen im dichtenden Eingriff stehen müssen. Weiterhin sind die Lagerwellen der Verschlussorgane, die zu einer Verdrehung derselben notwendig sind, einteilig mit den Verschlussorganen hergestellt, wodurch sich Lagerflächen im Rahmen für die Lagerwellen bilden. Allerdings muss die Lagerwelle nicht direkt im Rahmen gelagert sein. Es können auch zusätzliche Gleitringe oder dergleichen zur Anwendung kommen.The closure members are made using partial surfaces of the frame as mold walls and additionally other molded parts in Urformtechnik. By this is meant in particular the assembly injection molding process in which the closure members can be made of plastic. The closure organs are doing in a Injected cavity, which results from the mold parts and just those partial surfaces of the frame with which the closure members are to be engaged. In this case, in particular, the seating surfaces of the closure member offer, which must be in sealing engagement with the frame parts forming the passages, at least when the closure member is closed. Furthermore, the bearing shafts of the closure members, which are necessary for a rotation of the same, made in one piece with the closure members, thereby forming bearing surfaces in the frame for the bearing shafts. However, the bearing shaft does not need to be stored directly in the frame. Additional slip rings or the like may also be used.

Der erfindungsgemäße Schaltverband ist dadurch gekennzeichnet, dass jede der mit den Verschlussorganen einteilig hergestellten Lagerwellen eine eigene Drehachse aufweist. Die einzelnen Lagerwellen können demnach durch ein gemeinsames Betätigungsmittel angesteuert werden, um deren Drehung zu ermöglichen. Der wesentliche Vorteil der erfindungsgemäßen Ausgestaltung ist jedoch, dass alle Verschlussorgane in einen einzigen Rahmen eingespritzt werden können, da deren Toleranzen aufgrund der Schwindungen nicht durch eine gemeinsame Welle voneinander abhängen. Hierdurch ergibt sich ein sehr kostengünstig zu fertigendes Bauteil, wobei auch hohe Toleranzanforderungen erfüllt werden können. Dadurch ist gleichzeitig die Funktion des erfindungsgemäßen Schaltverbandes sichergestellt.The switching assembly according to the invention is characterized in that each of the bearing shafts made in one piece with the closure members has its own axis of rotation. The individual bearing shafts can thus be controlled by a common actuating means to allow their rotation. The main advantage of the embodiment according to the invention, however, is that all closure members can be injected into a single frame, since their tolerances due to the shrinkage do not depend on each other by a common shaft. This results in a very inexpensive to manufacture component, with high tolerance requirements can be met. As a result, at the same time the function of the switching association according to the invention is ensured.

Der Schaltverband ergibt sich somit aus dem Rahmen und den zugehörigen Verschlussorganen, die in diesen eingespritzt sind.The switching association thus results from the frame and the associated closure members which are injected into this.

Gegenüber einer gemeinsamen Drehachse gemäß dem Stand der Technik hat die beschriebene Bauform auch den Vorteil, dass eine Addition der Toleranzen aufgrund eines Winkelversatzes der Klappen auf einer gemeinsamen Drehachse vollständig vermieden wird. Hierdurch sind insbesondere die Leckageanforderungen die Verschlussorgane besser einzuhalten, da diese für jede Klappe einzeln eingestellt werden können. Eine Addition der Toleranzen ist ausgeschlossen. Dadurch kann auch auf einen bewusst vorgesehenen Winkelversatz zwischen den einzelnen Verschlussorganen auf der gemeinsamen Drehachse verzichtet werden, welcher über eine zunehmende Torrsion der gemeinsamen Verstellwelle zu einem zuverlässigen Verschliessen aller Klappen führen soll. Dieser bewirkt enorm hohe Stellkräfte, die bei der erfindungsgemäßen Ausführung vermieden werden können.Compared to a common axis of rotation according to the prior art, the described design also has the advantage that an addition of the tolerances due to an angular offset of the flaps on a common axis of rotation is completely avoided. As a result, in particular the leakage requirements, the closure organs are better maintained, as they can be set individually for each flap. An addition of the tolerances is excluded. As a result, it is also possible to dispense with a deliberately provided angular offset between the individual closure members on the common axis of rotation, which should lead to a reliable closure of all flaps over an increasing torrsion of the common adjusting shaft. This causes enormously high actuating forces, which can be avoided in the embodiment according to the invention.

Die Erfindung sieht vor, dass es sich bei den Verschlussorganen um Schaltklappen handelt. Diese sind bevorzugt mit einer zentralen Lagerwelle als Drehachse und schmetterlingsartig daran befestigten Klappenflügeln ausgeführt. An einer Schaltklappe der beschriebenen Art gleichen sich die an der Klappe angreifenden Kräfte aufgrund der Luftströmung in der Ansaugvorrichtung aus, wodurch diese mit geringen Stellkräften betätigt werden kann.The invention provides that the closure members are switching flaps. These are preferably designed with a central bearing shaft as a rotation axis and butterfly-like attached flap wings. At a switching flap of the type described, the force acting on the flap forces due to the flow of air in the aspiration match, so that they can be operated with low actuating forces.

Die beschriebene Ausrichtung hat den Vorteil, dass die einzelnen Klappen besonders einfach durch eine entsprechende Stellvorrichtung, zum Beispiel eine Verstellstange, angesteuert werden können. Außerdem läßt sich der Abstand zwischen den benachbarten Verschlussorganen damit minimieren, wodurch der Schaltverband auch auf engstem Raum untergebracht werden kann.The described alignment has the advantage that the individual flaps can be controlled particularly easily by a corresponding adjusting device, for example an adjusting rod. In addition, the distance between the adjacent closure members can be minimized thereby, whereby the switching association can be accommodated in a confined space.

Diese und weitere Merkmale von bevorzugten Weiterbildungen der Erfindung gehen außer aus den Ansprüchen auch aus der Beschreibung und der Zeichnung hervor.These and other features of preferred embodiments of the invention will become apparent from the claims and from the description and the drawings.

Zeichnungdrawing

Es zeigen

Figur 1
einen Schaltverband mit in einem einzigen Rahmen eingespritzten Drehschiebern in teilweise aufgebrochener Seitenansicht,
Figur 2
einen Schaltverband entsprechend Figur 1, wobei die Drehschieber in Einzelrahmen montagespritzgegossen sind, in teilweise aufgebrochener Seitenansicht,
Figur 3
die Aufsicht auf den Schaltverband gemäß Figur 2,
Figur 4
den Schnitt durch den Teil eines Schaltverbandes, in den ein Schaltklappenmodul mit Einzelrahmen eingebracht ist,
Figur 5
die Aufsicht auf den erfindungsgemäßen Schaltverband mit direkt eingespritzten Schaltklappen und Betätigungsgestänge,
Figur 6
den Einbau des erfindungsgemäßen Schaltverbandes in der Bauart gemäß Figur 5 in die Saugkanäle eines Saugrohres vor dem Zylinderkopfflansch.
Show it
FIG. 1
a switch assembly with injected in a single frame rotary valves in a partially broken side view,
FIG. 2
a switching association accordingly FIG. 1 , wherein the rotary valves are injection molded in single frame, in partially broken side view,
FIG. 3
the supervision on the switching association according to FIG. 2 .
FIG. 4
the section through the part of a switching association in which a switching flap module is inserted with single frame,
FIG. 5
the supervision of the switching assembly according to the invention with directly injected switching flaps and actuating rods,
FIG. 6
the installation of the switching association according to the invention in the type according to FIG. 5 in the suction channels a suction pipe in front of the cylinder head flange.

Beschreibung der AusführungsbeispieleDescription of the embodiments

Die Figuren 1 bis 4 zeigen Schaltverbände der bekannten Art zum besseren Verständnis der Ausführungsbeispiele der Erfindung in den Figuren 5 und 6.The FIGS. 1 to 4 show switching assemblies of the known type for a better understanding of the embodiments of the invention in the Figures 5 and 6 ,

In Figur 1 ist ein Schaltverband 10 dargestellt. Dieser könnte zum Beispiel als Zwischenflansch über Montagebohrungen 11 zwischen dem Zylinderkopf einer Brennkraftmaschine (nicht dargestellt) und dem Zylinderkopfflansch eines Saugrohres (ebenfalls nicht dargestellt) eingebaut werden. Der Schaltverband weist Durchgänge 12 auf, welche mit den nicht dargestellten Saugkanälen der Ansaugvorrichtung kommunizieren. Dabei liegen geschaltete und nicht geschaltete Durchgänge vor.In FIG. 1 a switching association 10 is shown. This could for example be installed as an intermediate flange via mounting holes 11 between the cylinder head of an internal combustion engine (not shown) and the cylinder head flange of a suction pipe (also not shown). The switching association has passages 12, which communicate with the suction channels, not shown, of the suction device. There are switched and non-switched passages.

In den geschalteten Durchgängen sind Drehschieber 13 angeordnet. Diese sind in einen Rahmen 14a, der mit ihnen zusammen den Schaltverband 10 bildet, eingespritzt. Im aufgebrochenen Teil ist zu erkennen, dass die Drehschieber in geöffneter Position dargestellt sind. Zu erkennen ist weiterhin, eine Lagerwelle 15, die den Rahmen 14a durchdringt und mit einer Kurbel zur mechanischen Ansteuerung des zugehörigen Drehschiebers 13 versehen ist.In the switched passages rotary valve 13 are arranged. These are in a frame 14 a, which together with them forms the switch assembly 10, injected. In the broken part can be seen that the rotary valves are shown in the open position. To recognize further is a bearing shaft 15 which penetrates the frame 14a and is provided with a crank for the mechanical control of the associated rotary valve 13.

In den weiteren Figuren sind entsprechende Bauteile mit den gleichen Bezugsziffern versehen und werden nicht noch einmal näher beschrieben.In the other figures, corresponding components are provided with the same reference numerals and will not be described again in detail.

Gemäß Figur 2 ist eine Variante des Schaltverbandes gemäß Figur 1 dargestellt. Diese Variante unterscheidet sich darin, dass die Drehschieber 13 jeweils in gesonderte Rahmen 14b eingespritzt sind. Damit ergeben sich einzelne Baueinheiten, welche in ein Trägerbauteil 17 eingesetzt werden können. Das Trägerbauteil gemäß Figur 2 erfüllt damit den selben Zweck beim Einbau in ein nicht dargestelltes Saugrohr, wie der Rahmen 14a gemäß Figur 1. Die Drehschieber sind in diesem Fall in geschlossenem Zustand dargestellt.According to FIG. 2 is a variant of the switching association according to FIG. 1 shown. This variant differs in that the rotary valves 13 are each injected into separate frames 14b. This results in individual units that can be used in a support member 17. The carrier component according to FIG. 2 thus fulfills the same purpose when installed in a suction tube, not shown, as the frame 14a according to FIG. 1 , The rotary valves are shown in this case in the closed state.

In Figur 3 lässt sich die Kontur der Rahmen 14b genauer erkennen. Diese umgeben die Drehschieber 13 ringförmig, wodurch der Verband zwischen Rahmen 14b und Drehschieber 13 entsprechend der dargelegten Vorteile des Montagespritzgießens gezielt gegeneinander abgedichtet werden können. Da der Drehschieber in geschlossener Stellung dargestellt ist, sind die Durchgänge, welche unterhalb der Drehschieber angeordnet sind nicht zu erkennen.In FIG. 3 the contour of the frame 14b can be seen more accurately. These surround the rotary valve 13 annularly, whereby the association between frame 14b and rotary valve 13 can be selectively sealed against each other according to the stated advantages of the assembly injection molding. Since the rotary valve in the closed position is shown, the passages which are arranged below the rotary valve can not be seen.

Der Schaltverband gemäß Figur 4 entspricht im Aufbau dem gemäß Figur 2, wobei jedoch anstelle des Drehschiebers 13 gemäß Figur 2 eine Schaltklappe 18 zum Einsatz kommt. Zu erkennen ist im Schnitt die Lagerwelle 15 der Schaltklappe und die von dieser abgehenden Klappenflügel 19. Wie im Zusammenhang mit Figur 2 dargelegt, ist die Schaltklappe 18 in den Rahmen 14b montagegespritzt. Der Rahmen ist in das Trägerbauteil 17 eingesetzt. Hierbei kann zum Beispiel eine Presspassung realisiert sein, welche eine zuverlässige Halterung des Rahmens 14b im Trägerbauteil 17 gewährleistet.The switching association according to FIG. 4 corresponds in structure to the according FIG. 2 , but instead of the rotary valve 13 according to FIG. 2 a switching flap 18 is used. To recognize is in section the bearing shaft 15 of the switching flap and the outgoing from this flap wings 19. As related to FIG. 2 set forth, the switching flap 18 is spray-molded into the frame 14b. The frame is inserted into the support member 17. In this case, for example, a press fit can be realized, which ensures a reliable mounting of the frame 14b in the support member 17.

Ein Unterschied zu Figur 2 ergibt sich in der Gestaltung der Klappe. Diese ist vorrangig zur Erzeugung von Wirbeln in der Strömung der Ansaugluft vorgesehen. Daher verschließt sie im geschlossenen Zustand den Querschnitt des Saugkanals nicht vollständig.A difference too FIG. 2 results in the design of the flap. This is primarily intended to generate vortices in the flow of intake air. Therefore, it does not completely close the cross section of the suction channel in the closed state.

Gemäß Figur 5 ist ein Schaltverband mit versetzt angeordneten Durchgängen 12 dargestellt. Eine Reihe der Durchgänge ist mit Schaltklappen 18 versehen. Diese sind direkt in den Rahmen 14a eingespritzt. Weiterhin ist in Figur 5 eine Betätigungsvorrichtung, bestehend aus einer Schubstange 20 und einem Antrieb 21, zu erkennen. Die Schubstange greift über Kugelgelenke 22 an den Kurbeln 16 der Schaltklappen 18 an wobei über eine Kurbel 16a die Kraft des Antriebs auf die Schubstange übertragen wird.According to FIG. 5 is a switching association with staggered passages 12 shown. A number of the passages are provided with switching flaps 18. These are injected directly into the frame 14a. Furthermore, in FIG. 5 an actuator, consisting of a push rod 20 and a drive 21, to recognize. The push rod engages via ball joints 22 on the cranks 16 of the switching flaps 18 via a crank 16 a, the force of the drive is transmitted to the push rod.

In Figur 6 ist der Einbau eines Schaltverbandes in ein Saugrohr dargestellt. Der Schaltverband ist an zylinderkopfseitige Auslässe 23 angeschlossen, die Saugkanäle 24 mit dem schematisch dargestellten Zylinderkopf 25 einer Brennkraftmaschine verbinden. Das Saugrohr besteht aus einem Sammelraum 26, von dem die Saugkanäle 24 wechselseitig abzweigen und diesen schneckenförmig umlaufen. Daher ist das Saugrohr für eine Brennkraftmaschine mit V-Anordnung der Zylinder geeignet.In FIG. 6 the installation of a switching association is shown in a suction tube. The switch assembly is connected to cylinder head side outlets 23, connect the suction channels 24 with the cylinder head 25 of an internal combustion engine shown schematically. The suction pipe consists of a collecting space 26, from which the suction channels 24 branch off alternately and rotate in a helical manner. Therefore, the intake manifold is suitable for an internal combustion engine with V-arrangement of the cylinder.

Auf der nicht geschnitten dargestellten Seite des Saugrohres ist weiterhin die Betätigungsvorrichtung zu erkennen, die aus den Bauteilen entsprechend Figur 5, den Kurbeln 16, den Kugelgelenken 22, der Schubstange 20 und dem Antrieb 21 besteht. Der Antrieb kann zum Beispiel durch einen Elektromotor realisiert sein. Eine andere Möglichkeit ist die Anbringung einer Unterdruckdose, die zum Beispiel durch den Saugrohrunterdruck geschaltet werden kann. Zuletzt ist im Sammelraum ein Einlaß 27 für die Verbrennungsluft zu erkennen. Durch diesen gelangt die durch den Luftfilter des Ansaugtraktes gereinigte Ansaugluft, um über den Sammelraum 26 verteilt zu werden. Der Schaltverband ist mit Dichtungen 28 versehen um eine Abdichtung gegenüber dem Saugrohr 29 und dem Zylinderkopf 25 zu gewährleisten.On the non-cut side of the suction tube, the actuating device can still be seen corresponding to the components FIG. 5 , the cranks 16, the ball joints 22, the push rod 20 and the drive 21 consists. The drive can be realized for example by an electric motor. Another possibility is the attachment of a vacuum box, which can be switched for example by the Saugrohrunterdruck. Finally, an inlet 27 for the combustion air can be seen in the plenum. Through this passes through the cleaned by the air filter of the intake Intake air to be distributed over the collecting space 26. The switch assembly is provided with seals 28 to ensure a seal against the intake manifold 29 and the cylinder head 25.

Zur Montage an den Saugrohren gemäß Figur 6 werden die Schaltverbände 10 vormontiert. Die Endmontage am Saugrohr kann also durch einen einfachen Handhabungsschritt erfolgen, wodurch die besonders sensiblen Kosten in der Endmontage klein gehalten werden können.For mounting on the suction pipes according to FIG. 6 the switching assemblies 10 are pre-assembled. The final assembly on the suction pipe can thus be done by a simple handling step, whereby the particularly sensitive costs in the final assembly can be kept small.

Claims (1)

  1. Switch assembly (10) for closing vacuum channels (24) of an intake manifold device of an internal combustion engine, featuring several shut-off members (13, 16) which are arranged in passages (12) formed by frames (14a) for the shut-off members, wherein the shut-off members are manufactured as mould walls and additional moulded parts using partial areas of the respective frames (14a), especially of the passages, by in-mould assembly in such a way that the shut-off members are injected into a cavity which is created by the moulded parts and those partial areas of the frame with which the shut-off members can be engaged and wherein the bearing shafts of the shut-off members which are necessary for their rotation are manufactured in one piece with the shut-off members, whereby bearing surfaces are formed in the frame for the bearing shafts, wherein each bearing shaft (15) features a separate rotating axis, wherein a control mechanism consisting of a connecting rod (20) and a drive (21) is provided for the shut-off members (13, 16), wherein the switch assembly can be connected to outlets (23) at the side of the cylinder head of the internal combustion engine for connecting the vacuum channels (24) with a cylinder head (25) of the internal combustion engine, wherein the switch assembly is provided with seals (28) in order to ensure a sealing of an intake manifold (29) and the cylinder head (25), wherein the shut-off members consist of switching flaps, wherein the passages (12) are staggered in a V-shaped manner in such a way that they form two rows parallel to each other and wherein only the passages of one row are provided with the switching flaps (18).
EP02007375A 2001-04-20 2002-04-09 Valve system for shutting off suction passages of an intake system Expired - Lifetime EP1251253B1 (en)

Applications Claiming Priority (2)

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DE10119281A DE10119281A1 (en) 2001-04-20 2001-04-20 Switching assembly for closing suction ducts of an intake device with this switching assembly
DE10119281 2001-04-20

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DE10143384C1 (en) * 2001-09-05 2003-04-17 Pierburg Gmbh The switching flap means
DE10348361B4 (en) * 2003-10-17 2016-02-04 Volkswagen Ag Suction tube for an internal combustion engine
US7543563B2 (en) * 2007-03-23 2009-06-09 Honda Motor Co., Ltd. High flow dual throttle body for small displacement engines
DE502007002202D1 (en) * 2007-07-30 2010-01-14 Cooper Standard Automotive D Exhaust gas recirculation system
DE102008055628A1 (en) * 2008-11-03 2010-05-06 Mann + Hummel Gmbh Method for manufacturing flap assembly for controlling fluid flow in suction tube of internal-combustion engine, involves molding flap body with sealing contour made of flexibly hardening material
KR101305192B1 (en) * 2011-11-10 2013-09-12 기아자동차주식회사 Variable intake system for vehicle

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ATE124316T1 (en) 1990-10-24 1995-07-15 Volvo Ab VALVE ARRANGEMENT.
DE4038762A1 (en) * 1990-12-05 1992-06-11 Bosch Gmbh Robert ACTUATOR
DE19503771A1 (en) * 1995-02-04 1996-08-08 Mann & Hummel Filter Suction module
FR2743111B1 (en) * 1995-12-29 1998-02-13 Renault INTAKE DEVICE FOR INTERNAL COMBUSTION ENGINE
US5715782A (en) 1996-08-29 1998-02-10 Genral Motors Corporation Composite molded butterfly valve for an internal combustion engine
DE19800207A1 (en) * 1997-03-20 1998-09-24 Mann & Hummel Filter Suction module for IC engine
FR2774125B1 (en) * 1998-01-29 2000-03-31 Peugeot CONTROL DEVICE FOR OPENING AND CLOSING AT LEAST ONE AIR DUCT OF A CYLINDER HEAD OF AN INTERNAL COMBUSTION ENGINE
DE19848440A1 (en) * 1998-10-21 2000-04-27 Mann & Hummel Filter Injection molded valve flap for valve mechanism has compensation for shrinkage provided by elastic flap edge
DE19918777A1 (en) * 1999-04-24 2000-10-26 Mann & Hummel Filter Flap valve arrangement as throttles in intake channels in IC engines has power transmission shaft connecting flap valve wings, and injection-molded valve modules
DE19944623A1 (en) * 1999-09-17 2001-03-22 Pierburg Ag Air intake duct system for internal combustion engines
US6354267B1 (en) * 2000-03-28 2002-03-12 Borgwarner Inc. Injection molded throttle body

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ATE420277T1 (en) 2009-01-15
EP1251253A2 (en) 2002-10-23
EP1251253A3 (en) 2003-07-09
US20020162531A1 (en) 2002-11-07
JP2002364389A (en) 2002-12-18
US6823838B2 (en) 2004-11-30
DE50213188D1 (en) 2009-02-26
DE10119281A1 (en) 2002-10-24

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